MD 0866 CONCERNING SEVERE THUNDERSTORM WATCH 274… FOR SOUTHEASTERN NEBRASKA
Mesoscale Discussion 0866
NWS Storm Prediction Center Norman OK
0408 AM CDT Tue May 21 2024
Areas affected…southeastern Nebraska
Concerning…Severe Thunderstorm Watch 274…
Valid 210908Z – 211115Z
The severe weather threat for Severe Thunderstorm Watch 274
continues.
SUMMARY…Local severe risk continues across the southeastern
quarter of Nebraska.
DISCUSSION…Thunderstorms continue across a sizable portion of
southeastern Nebraska at this time, with the strongest convection in
a roughly north-south band crossing the Howard/Hall/Kearney/Franklin
County vicinity. This convection is ongoing either side of the
primary surface baroclinic zone, near the nose of a 60-kt
south-southwesterly low-level jet.
Downstream from this eastward-moving band of storms, around 1500
J/kg mixed-layer CAPE is indicated by RAP-based objective analysis
on the warm side of the front. This — along with lift provided by
the surface front and aforementioned low-level jet — should allow
storms to persist over the next couple of hours, with a couple of
wind gusts to near severe levels still possible, along with marginal
hail.
..Goss.. 05/21/2024
…Please see www.spc.noaa.gov for graphic product…
ATTN…WFO…OAX…GID…
LAT…LON 39909896 40599885 41449792 42059632 41079567 40409581
39909896
